This is dh’s worst nightmare! He tends to just homily play along. Many a time I’ve changed the subject
That's really interesting- I can see parallels with that in my own life (being gay, neurodivergent, etc) where you get the dreaded sense the conversation is veering in that general direction and try to head it off at the pass!
I guess the difference is that if it's anyone I'm likely to see again, I'll tend to err on the side of telling them and getting it out of the way to avoid the awkwardness later if they do find out, whereas your DH understandably wants to be accepted as male and doesn't want new people to know.
I've been caught out in 'straight lies' where someone's assumed I'm straight, I've thought "fuck it, I'll just smile and nod for an easy life" and then they come back into my life and it gets more and more awkward!
Have you had situations (outside of medical stuff) where he's felt it necessary to explain to new people that he's trans? Either way, do you think worrying about this kind of thing takes up a lot of headspace for him?
Also, does it ever prevent him from supporting other trans people because he doesn't want to 'out' himself, especially working with students?